Home / 20,726.70-31,091.16-5,937.78

Finding the Fourth Proportional to 20,726.70, 31,091.16 and 5,937.78

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Solution

The fourth proportional to 20,726.70, 31,091.16 and 5,937.78 is: 8,906.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.70 : 31,091.16 = 5,937.78 : x
  2. Step 2: Convert to fraction form
    20,726.70/31,091.16 = 5,937.78/x
  3. Step 3: Cross multiply
    20,726.70x = 31,091.16 × 5,937.78
  4. Step 4: Simplify right side
    20,726.70x = 184,612,468.02
  5. Step 5: Solve for x
    x = 184,612,468.02/20,726.70
  6. Step 6: Final answer
    x = 8,906.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.